Article
Materials Science, Multidisciplinary
Yongang Zhang, Kai Chong, Qi Liu, Yu Bai, Zhibin Zhang, Dongting Wu, Yong Zou
Summary: The study found that supersonic atmosphere plasma spraying facilitates carbide dissolution/diffusion during coating deposition, while post heat treatment allows nano-sized carbides to precipitate, improving hardness and wear resistance.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)
Article
Engineering, Mechanical
Shalini Kushwaha, Alok Bhadauria, Shipra Bajpai, Ashutosh Tiwari, K. K. Pandey, Anup K. Keshri, Kantesh Balani
Summary: In this study, bimodal thermal barrier coatings were prepared by atmospheric plasma spraying, and their mechanical and tribological behavior were investigated. The results showed that the addition of reinforcements improved the hardness and plasticity index of the coatings, and the nanostructured regions reduced shear stress generation. Additionally, the introduction of carbon nanotubes helped in reducing energy dissipation and wear rate. Compared to conventional coatings, the bimodal coatings exhibited better performance in terms of wear and high temperature environments.
Article
Engineering, Industrial
Kirsten Bobzin, Wolfgang Wietheger, Martin Andreas Knoch, Hendrik Heinemann, Andreas Schacht, Arnold Gillner, Marc Hummel
Summary: A multi-layer coating system was developed for measuring the temperature of injection moulding tool surfaces, focusing on correlating the coating's electrical resistances with temperatures and investigating the reproducibility of measurements and minimal measurement area size. Conducting paths and measurement spots in the coating system were designed precisely using ultrashort pulsed laser ablation, without negatively affecting the underlying layers.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Review
Materials Science, Coatings & Films
Heli Koivuluoto
Summary: Thermal spraying of polymer coatings has a long history, initially focused on corrosion and wear protection. With the development of thermal spray technologies, there is an increasing interest in producing polymer coatings using advanced spray processes, and applying them in new fields such as anti-icing and anti-fouling.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Feifei Zhou, Donghui Guo, Xiaofeng Zhang, Baosheng Xu, Yiguang Wang, Min Liu, You Wang
Summary: This article discusses the microstructure, phase composition, and mechanism of in-situ constructed nanostructured tZrO2/La2(Zr0.75Ce0.25)2O7 (LCZ) composite TBCs, with results showing characteristics of bi-modal and dual-phase structures.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
V Carnicer, E. Canas, M. J. Orts, E. Sanchez
Summary: This study aims to develop zirconia ceramic coatings with silica aerogel particles for outstanding insulating properties, demonstrating the feasibility of dispersing aerogel in aqueous medium and producing stable suspensions. Suitable spray-dried powders were obtained in all cases, and coatings showed improved thermal conductivity with the addition of aerogel particles.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Coatings & Films
Zhaolu Xue, Yong Zhu, Haiyuan Yu, Mengchuan Shi, Xia Liu, Shihong Zhang
Summary: By integrating nanotechnology and atmospheric plasma spraying, a high-performance 8YSZ nano-structured thermal barrier coating (TBC) was successfully prepared. The optimal spraying granulation process resulted in nano-agglomerated powders with uniform particle size. The plasma-sprayed 8YSZ nano-structured coating exhibited a layered structure, bimodal microstructure, and a certain amount of nanostructures. However, the coating failed layer-by-layer after a certain number of water quenching-thermal shock cycles due to large thermal stress and cracks in the substrate, as well as thermal expansion mismatch between the metal bond coat and the ceramic coat.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Norbert Kazamer, Roxana Muntean, Ion-Dragos Utu, Gabriela Marginean
Summary: The research aimed to investigate the addition of ZrO2 as reinforcement to the self-fluxing alloy coatings. Different post-processing methods were used, including flame gun and vacuum furnace. The vacuum-heat-treated samples showed reduced porosity and improved mechanical behavior compared to the flame-post-processed ones.
Article
Materials Science, Coatings & Films
Q. Liu, Y. Wang, Y. Bai, Z. D. Li, M. Y. Bao, H. Zhan, N. Liu, Z. D. Chang, Y. S. Ma
Summary: This study explored high-property nickel based self-lubricating coatings by designing and preparing a series of Ni-MoS2/graphite coatings through supersonic atmospheric plasma spraying. The microstructural evolution of lubricating phases was systematically studied, revealing that the addition of approximately 19% graphite led to the longest friction time and lowest wear rate. Graphite not only compensated for the loss of MoS2, but also improved the density and fracture toughness of the coatings.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
M. Blum, E. Gyoktepeliler-Akin, A. Killinger
Summary: Investigation was conducted on the direct spraying of AlN using a supersonic suspension flame spray (HVSFS) process to enhance the thermal conductivity, and the performance of the sprayed coatings, including morphology and phase composition, was analyzed. The results showed that the coatings with axially injected pure AlN suspension had the highest AlN content, and the thermal conductivity values were positively correlated with the AlN content in the coatings.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Kang Shuai, Yulei Zhang, Yanqin Fu, Xiaotong Guo, Tao Li, Jie Li
Summary: The bilayer MH/TH coatings demonstrated excellent ablation resistance on C/C composites, attributed to the combination of protective outer layer and delay of external coating destruction, enhancing the stability of the coatings.
Article
Chemistry, Physical
Yongdong Yu, Jiayu Pan, Yuchen Yuan, Xudong Liu, Wanjun Yu, Hang Yin, Yongting Zheng, Xiaodong He
Summary: In this study, AZY-TCC with different Y2O3 contents were successfully prepared, and their properties were tested and analyzed. The results showed that the solidification morphology of AZY-TCC changed with increasing Y2O3 content, and the coatings exhibited excellent mechanical and anti-oxidative characteristics.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Coatings & Films
S. Conze, M. Grimm, L-M Berger, S. Thiele, R. Drehmann, T. Lampke
Summary: By adding different metal oxides to alumina, it was found that the addition of chromia positively influences the coating properties while titania does not affect the stability of the corundum phase. Furthermore, it was discovered that the joint addition of chromia and titania has a positive impact on the corrosion resistance of the coatings.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
Jiasen Han, Yong Zou, Dongting Wu, Ji Chen, Yongang Zhang
Summary: In this study, the resistance to CMAS corrosion of Al2O3/YSZ TBCs with different Al2O3 additions was compared to 7YSZ TBCs. It was found that increasing the Al2O3 addition restricted the depth of the thermo-chemical reaction zone and promoted anorthite crystallization, improving the CMAS corrosion resistance.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
Dong Chen, Jing Lu, Chengchuan Sun, Quansheng Wang, Xianjin Ning
Summary: Ta2O5-Y2O3 co-doped ZrO2 (TYSZ) powders were synthesized and a TYSZ coating was prepared by atmospheric plasma spraying (APS). The properties of TYSZ and YSZ coating were studied. The results showed that the TYSZ coating had a layered structure and the coating bond strength was 27.5 MPa. After high-temperature heat treatment, the TYSZ coating reverted to the t phase. The thermal cycling test revealed that spalling and cracking occurred in the TYSZ coating due to the mismatch in the coefficient of thermal expansion between the coating and the substrate.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Hui Zhang, Jianfeng Yang
JOURNAL OF MATERIALS SCIENCE
(2020)
Article
Materials Science, Ceramics
Jian-Fei Zhang, Xiao-Nan Zhou, Qiang Zhi, Shan Zhao, Xin Huang, Nan-Long Zhang, Bo Wang, Jian-Feng Yang, Kozo Ishizaki
JOURNAL OF ASIAN CERAMIC SOCIETIES
(2020)
Article
Materials Science, Ceramics
Qiang Zhi, Bo Wang, Shan Zhao, Zhao Zhang, Yu-Chen Deng, Bao-Qiang Hou, Nan-Long Zhang, Jian-Feng Yang
Summary: This study successfully developed highly porous Si3N4 ceramic monoliths composed of ultrafine fibrous grains with high flexural strength through a novel vapor-solid carbothermal reduction nitridation reaction. By controlling the content of alpha-Si3N4 diluents and density of CNT green bodies, porous Si3N4 monoliths with porosity ranging from 61-78% were achieved.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Ting Zhao, Mei-Mei Lian, Yi Qin, Jian-Feng Zhu, Xin-Gang Kong, Jian-Feng Yang
Summary: The study successfully prepared self-reinforced lithium disilicate glass-ceramics by introducing Li2Si2O5 crystal seeds into two different glass compositions, leading to improved microstructure and properties, especially fracture toughness. The specimen with the best comprehensive properties exhibited good flexural strength, improved fracture toughness, and comparable translucency to IPS e.max.
JOURNAL OF ADVANCED CERAMICS
(2021)
Article
Materials Science, Ceramics
Wenjia Jing, Jianfeng Yang
Summary: In this study, a fluoride-mediated solvothermal approach was used to construct 3D monocrystalline ZrO2 architectures through oriented attachment of ZrO2 nanoparticles. The preferential adsorption of fluoride on specific crystallographic planes played a critical role in promoting the oriented aggregation of ZrO2 nanoparticles. After calcination, the dense monocrystalline structures transformed into porous monocrystalline structures with well-dispersed open pores, showing improved performance in photocatalytic degradation and adsorption.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Optics
Jianfeng Yang, Juan Chen, Lei Quan, Zhenzhen Zhao, Hongyu Shi, Yajun Liu
Summary: This paper presents an optically transparent active bandstop frequency selective surface with wideband tunability of two resonance frequencies achieved through miniaturized elements. The proposed design features two large tuning ranges, angular stability, polarization insensitivity, optical transparency, and wideband dual-tunability, making it suitable for manipulating electromagnetic wave propagation in various applications.
Article
Chemistry, Physical
Baoqiang Hou, Haixia Guo, Nanlong Zhang, Qiang Zhi, Bo Wang, Jianfeng Yang
Summary: This study prepared and tested graphite flakes/copper composites with specific dihedral angles, showing an increase in friction coefficient with larger dihedral angles due to adhesion, and a decrease due to ploughing. The friction coefficients were lower at 30 to 60 degrees, and the wear rate decreased monotonically as the dihedral angle increased.
Article
Materials Science, Multidisciplinary
Rong-zhen Liu, Wen-wei Gu, Yu Yang, Yuan Lu, Hong-bin Tan, Jian-feng Yang
Summary: Reaction-bonded B4C-SiC composites show promising potential for advanced technological applications. The microstructure evolution mechanism of these composites was investigated by fabricating B4C-SiC composites through Si-melt infiltration. The mechanical properties, microstructure, and phase evolution were found to be influenced by sintering time and B4C content, with increasing temperature and time leading to reduced unreacted B4C and improved hardness.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2021)
Article
Materials Science, Ceramics
Wenjia Jing, Baoqiang Hou, Jinxiao Wang, Qiang Zhi, Jianfeng Yang, Bo Wang
Summary: This study reports the successful synthesis of fluorine-terminated urchin-like ZrO2 hollow microspheres with exposed (010) facets using a fluoride mediately solvothermal method. Density functional theory calculations confirm the stabilization effect of fluorine adsorption on (010) surfaces. Furthermore, the fluorinated ZrO2 hollow microspheres exhibit tunable photocatalytic selectivity in dye degradation.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Composites
Zhong-Yu Wang, Xiao-Nan Zhou, Zi-Xuan Li, Song-Song Xu, Liu-Cheng Hao, Jun-Ping Zhao, Bo Wang, Jian-Feng Yang, Kozo Ishizaki
Summary: By mixing alumina particles with different diameter ratios, the thermal conductivity of polymer composites can be optimized, leading to higher thermal conductivity and stability. The proper proportion and particle size of hybrid fillers can enhance the thermal properties of composites.
POLYMER COMPOSITES
(2022)
Article
Chemistry, Multidisciplinary
Xiaonan Zhou, Songsong Xu, Zhongyu Wang, Liucheng Hao, Zhongqi Shi, Junping Zhao, Qiaogen Zhang, Kozo Ishizaki, Bo Wang, Jianfeng Yang
Summary: This article presents a facile and effective method to fabricate anisotropic polymer composites using biotemplate ceramization technology. By replicating the hierarchical microstructure of wood in the cellular biomass derived SiC framework, an epoxy composite with vertically aligned dense SiC microchannels is achieved, which exhibits interesting properties including high thermal conductivity, significant enhancement efficiency, and outstanding anisotropic thermal conductivity ratio.
Article
Materials Science, Ceramics
Nan-Long Zhang, Yu-Chen Deng, Bao-Qiang Hou, Qiang Zhi, Hua Cheng, Jian-Feng Yang, Bo Wang, Wei Wang
Summary: In this study, highly porous SiC frameworks were fabricated, showing excellent corrosion resistance, oxidation resistance, and high-temperature thermal stability, making them a good candidate for high-temperature thermal insulators.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Songsong Xu, Xiaonan Zhou, Qiang Zhi, Junjie Gao, Liucheng Hao, Zhongqi Shi, Bo Wang, Jianfeng Yang, Kozo Ishizaki
Summary: Inspired by the transport behavior of water and ions through the aligned channels in trees, the researchers demonstrate a facile, scalable approach for constructing biomorphic cellular Si3N4 ceramic frameworks with well-aligned nanowhisker arrays. The porous Si3N4 ceramics exhibit outstanding thermal conductivity, flexural strength, and anisotropy, making them promising for multifunctional ceramics.
JOURNAL OF ADVANCED CERAMICS
(2022)
Article
Chemistry, Physical
Yu-Chen Deng, Nan-Long Zhang, Qiang Zhi, Bo Wang, Jian-Feng Yang
Summary: Dense SiC ceramics were fabricated using SiC nanoarrays as crystal seeds in a HTPVT growth process, achieving high density, large grain size, high hardness, high flexural strength, and good thermal conductivity.
Article
Materials Science, Ceramics
Hua Cheng, Jian-Feng Yang, Nan-Long Zhang
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
(2020)
Article
Materials Science, Coatings & Films
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)